Time-lock



(No Model.)

o. N. BRISCO. i

TIME LOCK.

Patented July 12, 1887.

UNITED STATES PATENT OFFICE..-

OHARLES N. BRISOO, OF CHICAGO, ILLINOIS.

TIME? LOCK.

SPECIFICATION forming part of Letters Patent No. 366,300, dated July l2, 1887.

.Applica'ion filtd lune 5, 1886.

To @ZZ whom t may concern.:

Be it known that I, GHARLEs N. Brusco, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Time-Locks, of which I do declare the following to be a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

In the use of time-locks for safes, vaults, and other burglar-proof receptacles, it is customary to place such locks on the inner face of the door in such position that the guard or detent of the lock will be in proper position to cheek the action of t-he bolt-work during the predetermined period for which the time mechanism is set. In order to set the time mechanism it is necessary to open the door of the safe or vault and turn the indicator-pointers to a position upon the dials a distance corresponding with the time during which the safe is to remain closed. ln burglar-proof safes or safety-boxes designed for use upon railway-trains it is desirable either that the bolt-work should be guarded by the time-lock in such manner that the safe cannot be opened while the train is passing from one station to another, or that provision be made whereby, wit-hout opening the door, the time-lock can be instantly thrown into action by the attend ant to guard the bolt-work, so that in event the express-car has been entered' by burglars the attendant of the safe cannot be compelled to open its door. To open the door of the safe and reset the time-lock at each station is a matter of considerable inconvenience, par# ticularly if the necessity for opening the safe to withdraw ordeposit valuables does not occur. In various other situations, also, it is desirable that the attendant of a safe or vault should be able to instantly throw the timelock into operation without the necessity of opening the .safe or vault door for such purpose.

My present invention consists, primarily, in the combination, with the usual or other suit,- able time-lock mechanism located on the inside of the safedoor, of a suitable operatingknob on the outside of the safe-door, and connected with the time mechanism by a suitable one-way7 gearmthat is to say, by a gear Serial No. 204,191. (Nomodel.)

which will permit said operating-knob to move the time mechanism for the purpose Vof th rowingthe same into action to lock the door, but which will not permit the knob to reverse the time mechanism for the purpose of unlocking the door. Y

My invention also consists in the novel features of construction hereinafter described, illustrated in the accompanying drawings, and particularly defined in the claims at t-he end of this specication.

Figure l is a plan view of a portion of the outer face of'a safe-door having my improvements applied thereto. Fig. 2 is a view in vertical section, parts being shown in elevation. Fig. 3 is a view of the time-lock mechanism upon the inner side face of the door. Fig. 4 is an enlarged detail view of the ratchetpinion on the setting-arbor and the detent engaging therewith. Fig. 5 is a view of the ratchet-pinion; and Fig. 6 isa detail side view of the detent-wheel.

A designates the door lof the safe, which will be. provided with any well-known or suitable kind of bolt-work and means for throwing the same. In the door ofthe safe is formed a perforation or seat to receive the spindle B of the dial-knobB, this spindle being preferably of conical shape to prevent its being driven in if attempt be made to forcibly enter the safe. A suitable bearing-ring, C, may be placed upon the face ofthe door to receive the edge ofthe dial B2, the points ofwhich dial will indicate the extent of movement necessary to set the time-lock for any desired length of time.

Upon the inner face of the spindle Bis fixed the pinion D, which engages with the ratchetpinion E, that is loosely held upon the arbor F of the time-lock, and is provided upon the inner side with the catch or ratchet c, adapted to engage with the spring pawl or detent G of the detent-wheel G, that is keyed upon the arbor F. This arbor F is journaled within the sides or casing H of the timelock, which may be of any suitable construction, and upon the free end of the arbor is fixed a tripping dog, f, that engages with the pivoted guard I, which serves to check the operation of the bolt-work in any well-known way. The lower end of this guard 'l is furnished with ahook, i, adapted IOO to engage the end of the rod I, which will be connected with the fence of the permutationtumblers in the usual manner.

On either side of the arbor F are placed the indicator-pointers K K', which are fixed to the ends ot' suitable arbors, the clock-work mechanism of which will engage with the arbor F and serve to control the movement of the dogfand the guard I. rIhe spring-detent Gr will be made of thin metal, so that the catch or ratchet@ of the pinion E can, when moving in one direction, freely pass over the end of this detent, and when moving in the opposite direction can engage therewith so as D to turn the detent-wheel G in one direction only. It will thus be seen that the arbor` F ofthe time mechanism is connected with the spindle B, that extends through the door of the safe by what, for convenience, may be termed a one-way gear,77 so that such time mechanism can be moved in one direction only from the outside of the safe.

` From the foregoing description the operationwill be seenV to be as follows: Assuming the parts to be in the relative position shown in Fig. 3, ifthe knob B be turned in the direction of the arrow, the spindle B and its pinion 4D will turn the ratchet-pinion E, causing its catch or ratchet to engage with the end ofthe detent G, and through the medium of this detent and its Wheel G to turn the arbor F, and hence to turn backward the dogf, so as to permit the pivoted guard I to be forced by the spring s into position to engage the bar I for checking the movement of the bolt-work. The guard I will thus continue to check the` bolt-work unt-il the movement of the clockwork shall have turned backward the arbor F a sufficient distance to cause its dog fto strike and force backward the guard I, and so release the end of the bar I. By connecting the spindle of the knob B with the time-lock in vsuch manner that the arbor F can be moved from the outside of the safe it will be seen that theattendant of the safe can instantly throw the time-lock into action to guard the 4lock from the outside of the safe.

bolt-work, or can, by means ofthe dial-plate, set the timelock for any desired number of hours or minutes'without the necessity of opening the safe for such purpose. Moreover, by connecting the spindle B with the arbor F in such manner that this arbor can be moved in one direction only from the outside of the safe, it will be seen that the attendant, having thrown the time-lock into operation,.can not be compelled to unlock the safe. It will be understood that my invention can be applied to any of the well-known forms of timelock, and various means other than those shown may be devised for operating the time- Thus, for example, the arbor F may be made long enough to extend through the sate-door and be geared ,with the time mechanism in such manner as to move it in one direction only.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent,`is-

l. In a time-lock, the combination, with the time mechanism located o'n the inside of the safe-door, of an operating-knob attached to the outside of the safe-door, and a suitable one-way gear, and means for connecting said knob with the time mechanism, substantially as and for the purposes set forth.

2. In a time-lock, the combination, with the time mechanism located on the inside of the safe-door, of a spindle for controlling the time mechanism extending through the door of the safe, and a suitable one-way gear for connecting said spindle with the time mechanism, substantially as described. l

.3.- In time-lock mechanism, the combination, with the arbor F, and a suitable guard controlled-by said arbor, of the detent-wheel G, the detent G, the pinions E and D, the

spindle B, and the k'nob B', substantially as described.

' CHARLES N. BRISCO. Witnesses:

GEo. P. FISHER, Jr-, JAMES H. PEiRcE. 

